Path analysis on the yield components of genotypes of rice in the state of Rio Grande do Sul

Authors

  • Eduardo Zaffaroni
  • Arlei Laerte Terres
  • Gilberto Antonio Peripolio Bevilaqua
  • Antonio Dias Robaina
  • Divania de Lima
  • Pedro Moreira da Silva Filho
  • Roberta Lopes

DOI:

https://doi.org/10.1590/S1678-3921.pab1998.v33.4814

Keywords:

Oryza sativa

Abstract

The purpose of this study was to evaluate the yield of rice genotypes and verify the yield component influence through path coefficient analysis. Nine rice genotypes were cultivated in experimental field in the 1993/94 growing season. The genotypes EMBRAPA 39-AGRISUL, TF296-1-8, CL Seleção 447B-B, CL99-40-2, CL78-84-1M-26M-M, TF231-13-1M-5-B, EMBRAPA 6-CHUÍ, EMBRAPA 7-TAIM and IRGA 410 were studied in this work. The following parameters were analyzed: plant number/ha, panicle number/plant, grain number/panicle and grain weight and crop yield. The genotypes that showed superior behavior were CL78-84-1M-26M-M, IRGA 410 and EMBRAPA 6-CHUÍ. Number of grain per panicle and thousand grain weight were the yield components which had highest effect on yield.

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Published

1998-01-01

How to Cite

Zaffaroni, E., Terres, A. L., Bevilaqua, G. A. P., Robaina, A. D., Lima, D. de, Filho, P. M. da S., & Lopes, R. (1998). Path analysis on the yield components of genotypes of rice in the state of Rio Grande do Sul. Pesquisa Agropecuaria Brasileira, 33(1), 43–48. https://doi.org/10.1590/S1678-3921.pab1998.v33.4814

Issue

v.33, n.1, jan. 1998

Section

CROP SCIENCE